IBM InfoPrint 6500, User Manual

Page: 152 / 334

Interface Type
This parameter configures the electrical interface for the serial port, as follows:
v
RS-232 (the default)
v
RS-422
Data Protocol
You may select one of the following serial interface protocols to meet the host
interface requirements.
v
XON / XOFF (the default). Transmit On / Transmit Off. The printer controls the
flow of communication from the host by telling the host to turn the transmission
on and off. This is the factory default serial protocol.
v ETX / ACK
. End of Text / Acknowledge. The host controls the flow of
communication to the printer by sending a block of data and ending the block
with an End of Text (ETX) signal. When the printer receives the ETX signal, it
will acknowledge it has received the entire block of data.
v
ACK / NAK . Acknowledge / Negative Acknowledge. ACK means acknowledge;
the device acknowledges it has accepted a transmission. NAK means a negative
acknowledge; the device did not receive the transmission.
v
DTR (DTE Ready). The printer controls the data flow by asserting or
de-asserting this hardware signal to the host. If there is enough room in the
printer buffer, the printer will send a high signal; if the buffer is full the printer
will send a low signal. DTR tells the host if it is safe to send more data. (If the
host sends data during an unsafe condition, data will be lost.)
Baud Rate
This parameter sets the baud rate of the serial interface in the printer. Baud rate is
the speed at which serial data is transferred between the host computer and the
printer.
v
9600 Baud (the default)
v 19200 Baud
v
38400 Baud
v 57600 Baud
v
115200 Baud
v 600 Baud
v
1200 Baud
v
2400 Baud
v
4800 Baud
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Infoprint 6500 User’s Manual